Wireless Dust Sensor SDS011 and DHT22(AM2302) with Wemos OLED enclosure

Republished from my thingiverse: https://www.thingiverse.com/thing:3342804

Links to the parts contain Banggood's affilate metadata.

Intro

I needed a PM2.5/PM10 sensor during this winter season. I wanted to monitor more than one room and did not want to buy multiple expensive devices.

This is an eclosure designed to fit 3 devices:

- an acurate dust sensor

- an Wemos ESP8266-based board with an OLED display

- a digital humidity and temperature sensor

Parts

- Wemos NodeMCU with an OLED display

The brain of this project. Provides processing, connectivity and instant data feed on the display.

Buy Wemos with a display

- Nova SDS011

The main sensor used to measure PM2.5 and PM10

Buy SDS011

- DHT22 (AM2302)

Additional sensor to measure humidity and temperature

Buy DHT22

- Screws:

4x longer M3x20 screws to hold the main case plates together

4x shorter M3x8 screws to mount the Wemos board

Assembly

- Print the parts (I used 2 colors per part with ColorPrint )

- Connect SDS011 to Wemos board

- Connect DHT22 to Wemos board

- Use 4x shorter screws to mount the Wemos board to the front plate

- Use the longer boards to keep front and back plate together

- Flash Wemos board with ESPEasy

- Configure devices in ESPeasy

Summary

When fully assembled, it should be compete with the retail products as:

- Xiaomi PM2.5 detector

- SNDWAY SW-825 Digital Air Quality Monitor

Please feel free to propose improvements

https://github.com/wojked/dust-sensor